micro_Amps
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OTP, the FETs I am using for this mod can handle up to 4 amps but I’m sure the pcb wont carry it.
I have a tricell booster that is having some troubles with current flow and heat from the FETs. So the next step is to mount the whole H-bridge externally (off the pcb)with thicker wires to increase current carrying capacity and provide extra cooling. I’ll probably remove the windscreen to allow airflow over the FETs to cool them. They might even have to go outside the car.
:)uAHey Bilbo, welcome, good to see another tech hed.
How does the range go on the added frequencies?
Do you ‘switch in’ the inductors that were in the original rf Tx circuit as well, or do you use the same set of inductances for all freqs?
:)uAEXCELLENT! Thanks perri, that puts that one to rest. I think we all thought it was shonky anyway.
There goes the rest of his business.Any replies yet perri?
:)uAUm……yeah……..ok………I think its time for bed freeloader101
Edited by – micro_Amps on 05 June 2003 19:13:39
Well, how did you go?
Wouldnt mind seeing a pic of the quad mod.
:)uACranga, no probs, check your PMs
:)uAhehehe, I’m not sure why but this stuff actually keeps me awake.:shock:(Thats a yawn, by the way)
Maybe you should take up baking cookies, or maybe knitting, its becoming fashionable again you know. :smiley2: j/k freeloader101, lol.
:)uA
Edited by – micro_Amps on 05 June 2003 17:52:33
Gee, thats not bad considering the extra shells and motors that come with it.
Can someone fill me in on the quality of the LXX product compared to the Tomy stuff, is it as good or does it have problems?
I’m thinking of getting one of these sets.
Boosters on all 6 freqs, hmmmm.
:)uACranga, I think this will be as durable as any other dual cell car. All the fets do is increase the power and they are not a moving part so theres no problems there.
I am already doing fet mods to peoples cars, they send it to me, I mod it then send it back.
If someone wanted a dual cell fet modded car I would recommend getting a fet mod done first, then sending it to JamieKulhanek for a dual cell mod. He’s the dual cell mod expert on this forum.Good idea on the twin steering springs ph2t, I didnt think of that one.
:)uA
Yes thats true Efarel, because the car has more power, it will drift around corners and then recover, rather than just slide out, grip, and flip over. It also depends what tyres you are using.
I havent put any FETs into the steering circuit yet, but I think I might have to now, it sounds good.
Impreza. its pretty much a standard looking internal dual cell with the FET mod done. I will try and get a pic on my gallery later his afternoon, showing the setup so far.
:)uAOk, here’s some answers to all those questions……
Surfmystrat
Q. How long does it take to get up to speed?
A. It takes a few meters, like I said I need more room now. I am hoping with a few more mods I can improve the acceleration too. Also traction is becoming a problem.
Q. Hows the handling?
A. Good with sticky rears and hard fronts. Needs to understeer heaps or it flips. Turns are wide at high speed but can be made tighter by slowing down, same as a booster with a 3.8.
Q. How long do the batts last?
A. I’m using 2 x 150mAH cells charged with my custom charger so I havent noticed a huge reduction in run time. Its all a matter of filling the batteries properly before running it. Your runtime is determined more by the amount you charge in these cars
Perriscope
Q. Can it turn?, does it flip?, must wheel stand like nothin else?
A. Parts 1 & 2 answered already. Yes it does wheel stand if you run in reverse then go flat out forward. With the bit racer gears in it, it is really setup for top speed only and this takes its toll on the torque, so no wheelies. If I put the 12:1 ratio gears in it does wheelies from a standing start but of course top speed is not as high.
Weapon
Q. Tricell?
A. A tricell, FET mod booster. Its on the workbench right now …… watch this space.
Cranga.
Q. Will it ever end?
A. I still have a ways to go yet Cranga! Lots of things to try.
Q. What else can be done to these crazy machines?
A. Just you wait and see. 30Km/h…hehehe, who knows.
:)uAEdited by – micro_Amps on 03 June 2003 22:04:06
Good stuff Ph2t, its coming along nicely.
And thanks for the acknowledgement.:D:)uA
4 reasons ph2t,
1. its a dual cell,
2. its running FETs instead of transistors
3. the motor is a 4.0,
4. and it is now powerful enough to push the big gearing that comes from the kit (bit) racers.
I just realised I didnt have the highest bit racer gears in either. Might save them for the tricell.
:)uAMy guess is its B.S. anyway.
:)uATry this,
go through his feedback listings and email the (few) people that have actually bought this and see what its all about.
Then let us all know.
We gotta get this cat outa the bag!:)uA
I think I need a heatsink on the pcb, things are warming up.
:)uABarto, I think about 3 or 4 Km/h.
My target is 30Km/h
I think is is possible, I still have a few tricks up my sleeve.
:)uAhehehe (ROFL actually, just woke the wife :shock:) ph2t, that has to be one of the best come back posts I’ve seen.
Very inventive….now is this high calibre forum banter or what?
And oh so highbrow too.:)uA
No not from Perth Froggy, I’m in Melbourne.
You have a PM.
:)uAYeh Ive seen some video on the net of one of these “Revolutors” flying indoors and dropping a cube of sugar into a cup of coffee.
These are real expensive tho.
:)uAHave you been able to fit them on yet?
No they just look pretty. Mighty pretty tho
:)uAhehehe, keep it coming barto, lots o comments makes for lots of responses, which makes for a busier and more interesting forum site.
:)uAI jusr re-read some of this….
Quote:from a crappy little diecast pullback. The rims are perfect dimensions in comparison to the original Bit rims and the TOMY tyres fit perfectlySounds interesting…..
What kind of rims were they, how much and where did you find them?
:)uA -
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